DINKONDA GLOBAL Power Plants Special GW51-40 Series 4000A 500-1500V Universal DC Circuit Breaker, DC Isolating Switch Rotating Disconnector

DINKONDA GLOBAL Power Plants Special GW51-40 Series 4000A 500-1500V Universal DC Circuit Breaker, DC Isolating Switch Rotating Disconnector

Product Overview

The GW51-40 series universal DC circuit breaker (with integrated DC isolation function) is the core protection and switching equipment for high-power DC distribution systems. The product integrates main circuit on/off, fault protection, electrical isolation, monitoring and communication, and is suitable for high-capacity DC power supply scenarios. Equipped with a drawer style installation structure, reliable electrical isolation can be achieved at the opening position, meeting the safety isolation requirements for DC circuit maintenance. It is widely used in high-power DC systems such as photovoltaic energy storage power stations, DC microgrids, metallurgical DC power supply, rail transit DC matching, and large UPS DC busbars. It can quickly protect against DC circuit overload, short circuit, undervoltage and other faults, while also undertaking maintenance isolation functions.

Structural Composition

1. * * Drawer style body frame**
Adopting a modular drawer base structure, the circuit breaker body can be shaken in and out, with three positions including working position, testing position, and isolation position. Shake it out to the isolation position, and the main circuit forms a clear disconnection point, achieving DC safe isolation and meeting the functional requirements of the isolation switch. It is convenient for on-site disassembly, maintenance, and replacement, without the need to completely remove the primary busbar.

2. * * Intelligent electronic trip controller**
The panel is equipped with a LCD display screen, operation buttons, and status indicator lights. Real time collection of operating parameters such as DC voltage, current, power, and electrical energy; Built in protection logic, supporting overload long delay, short circuit short delay, instantaneous short circuit protection, undervoltage protection and other protection functions; Local parameter tuning and fault record storage are available for easy fault tracing.

3. * * Main contact and arc extinguishing system**
The dedicated DC arc extinguishing chamber structure optimizes the arc extinguishing grid according to the characteristics of the DC arc being difficult to extinguish, quickly cools and divides the DC arc, improves the breaking capacity, and ensures reliable breaking under high DC current. The main contact is made of arc resistant alloy material, which is resistant to DC arc erosion and extends the service life of the equipment.

4. * * Manual/Electric Operating Mechanism**
Support electric energy storage closing and manual energy storage operation, with emergency operation button for manual opening. Equipped with red opening and green closing operation indicator handles, visually displaying the on/off status of the switch; Mechanical interlocking is reliable, preventing misoperation, and mechanical locking devices are installed at isolation positions.

5. * * Secondary wiring terminal module**
The top of the equipment integrates a secondary signal terminal block, which can realize remote transmission of switch position signals, fault alarm signals, and communication signals. It supports docking with the upper monitoring system to achieve remote monitoring and remote opening and closing control.

Product Features

1. Integrated design of circuit breaker and isolating switch**
A device has both DC protection circuit breaker function and DC isolation switch function. After the switch is opened, a visible isolation fracture is formed, which meets the requirements of power specification maintenance isolation. There is no need to configure an independent DC isolation switch, simplifying the primary circuit design of the DC cabinet, reducing the space occupied by the cabinet, and lowering the overall equipment investment.

2. * * Large scale DC breaking performance**
Specially designed for high-voltage and high current DC operating conditions, it can withstand short-circuit surge currents in DC systems. The arc extinguishing system is optimized for DC arc characteristics to avoid reignition of DC arcs and ensure rapid disconnection of faulty circuits.

3. * * Intelligent measurement and control, capable of remote communication**
Intelligent controller monitors DC operation data in real-time, saves fault waveform and event records; Support standard industrial communication protocols, connect to the backend SCADA monitoring platform, achieve telemetry, remote signaling, and remote control, suitable for intelligent management of energy storage power stations and DC distribution.

4. * * Drawer style modular design, safe and convenient operation and maintenance**
Three position drawer structure, the test position can test the secondary circuit without load, and the isolation position achieves complete isolation of the primary circuit. The main body can be extracted for quick maintenance and replacement of spare parts, greatly reducing the downtime and maintenance time of the DC system; Equipped with complete mechanical interlocking to prevent the switch from being pulled out with load.

5. * * Wide working condition adaptability, high reliability**
The shell is made of high-strength flame-retardant engineering materials, and the protection level meets the installation requirements inside the cabinet; The product has the ability to resist vibration and temperature changes, and can adapt to environments such as energy storage power stations and industrial workshops. It can withstand frequent impact conditions of DC systems.

6. * * The protection function can be flexibly adjusted**
The protection parameters of the controller can be set on site, and the overload and short-circuit protection action thresholds and delays can be adjusted according to the characteristics of the DC load, adapting to the protection requirements of different DC loads (energy storage battery pack, DC motor, DC bus).

Technical Parameters

-Product model: GW51-40 series universal DC circuit breaker (with DC isolation function)
-Rated current of the frame: 4000A (covering multiple current specifications in the series)
-Applicable type: DC circuit protection+maintenance isolation integrated equipment
-Operation mode: electric energy storage/manual energy storage operation
-Installation type: drawer type
-Protection functions: overload long delay protection, short circuit short delay protection, instantaneous short circuit protection, undervoltage protection, fault event recording
-Communication function: Supports remote communication, can upload current, voltage, fault, position signals, supports remote control
-Isolation characteristics: The opening position has a clear disconnection point, meeting the safety regulations for DC electrical isolation
-Application circuit: Large capacity DC bus, DC side of energy storage converter, centralized DC system for photovoltaics, industrial DC power supply

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.